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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include <tools/diagnose_ex.h>
+
+#include "continuouskeytimeactivitybase.hxx"
+
+#include <tuple>
+
+namespace slideshow::internal
+{
+ ContinuousKeyTimeActivityBase::ContinuousKeyTimeActivityBase( const ActivityParameters& rParms ) :
+ SimpleContinuousActivityBase( rParms ),
+ maLerper( std::vector(rParms.maDiscreteTimes) )
+ {
+ ENSURE_OR_THROW( rParms.maDiscreteTimes.size() > 1,
+ "ContinuousKeyTimeActivityBase::ContinuousKeyTimeActivityBase(): key times vector must have two entries or more" );
+ ENSURE_OR_THROW( rParms.maDiscreteTimes.front() == 0.0,
+ "ContinuousKeyTimeActivityBase::ContinuousKeyTimeActivityBase(): key times vector first entry must be zero" );
+ ENSURE_OR_THROW( rParms.maDiscreteTimes.back() <= 1.0,
+ "ContinuousKeyTimeActivityBase::ContinuousKeyTimeActivityBase(): key times vector last entry must be less or equal 1" );
+ }
+
+ void ContinuousKeyTimeActivityBase::simplePerform( double nSimpleTime,
+ sal_uInt32 nRepeatCount ) const
+ {
+ // calc simple time from global time - sweep through the
+ // array multiple times for repeated animations (according to
+ // SMIL spec).
+ double fAlpha( calcAcceleratedTime( nSimpleTime ) );
+ std::ptrdiff_t nIndex;
+
+ std::tie(nIndex,fAlpha) = maLerper.lerp(fAlpha);
+
+ perform(
+ nIndex,
+ fAlpha,
+ nRepeatCount );
+ }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */